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US 10,256,024 B1Granted
Power converter temperature estimation
AssigneeFord Global Technologies, LLC
InventorCraig Brian Rogers
Life of this patent
Estimating the term…
Abstract
A vehicle includes a power converter having an inductor electrically disposed between a traction battery and an electric machine. The vehicle includes a controller configured to reduce a power limit of the power converter. The reduction is responsive to an increase of a ratio of voltage across the inductor to a rate of change of current through the inductor.
Claims19
A vehicle comprising:
- a power converter including an inductor electrically disposed between a traction battery and an electric machine;
- and
- a controller configured to, responsive to an increase of a ratio of voltage across the inductor to a rate of change of current through the inductor, reduce a maximum allowable ON period for switches of the power converter to reduce a power limit of the power converter.
A vehicle comprising:
- a power converter including an inductor electrically disposed between a traction battery and an electric machine;
- and
- a controller configured to, responsive to a decrease of a ratio of voltage across the inductor to a rate of change of current through the inductor, increase a maximum allowable ON period for switches of the power converter to increase a power limit of the power converter.
A method comprising:
- by a controller,
- responsive to a change of a ratio of voltage across an inductor to a rate of change of current through the inductor, adjusting a maximum allowable ON period for switches of a power converter to adjust a power limit of the power converter including the inductor electrically disposed between a traction battery and an electric machine.
Dependencies are inferred from the claim text.